8000 Update Lambda.lagda.md Diamond and confluence example by b-m-f · Pull Request #1071 · plfa/plfa.github.io · GitHub
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Update Lambda.lagda.md Diamond and confluence example #1071

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@b-m-f b-m-f commented Nov 21, 2024

The diamond property written in Agda demand a single step from L->(M|N)? Therefore the verbose text should reflect the picture, which has 3 lines at the top.

wadler
wadler requested changes Nov 21, 2024 < 8000 /div>
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Your fix is incorrect. Please submit the following fix instead. Replace

"If each line stands for zero or more reduction steps, this is called confluence, while if the top two lines stand for a single reduction step and the bottom two stand for zero or more reduction steps it is called the diamond property."
-->
"If each line in the figure above stands for zero or more reduction steps, this is called confluence, while if the top two lines stand for a single reduction step and the bottom two stand for zero or more reduction steps it is called the diamond property."

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b-m-f commented Nov 22, 2024

OK,
I now see that the lines are meant as the 1 line from L to M and 1 line from L to N.

I saw each direction as a combination of 3 lines, as the individual characters.

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b-m-f commented Nov 22, 2024

I have updated the change. What do you think about making it clear that the individual characters \, / connect to a single line and the figure has 4 lines total?

The diamond property written in Agda demand a single step from L->(M|N)? 
Therefore the verbose text should reflect the picture, which has 3 lines at the top.
Make description of picture clearer
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